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GET
cURL

Authorizations

Authorization
string
header
required

Send Authorization: Bearer <api_key>. The legacy Authorization: Api-Key <api_key> scheme is also accepted.

Query Parameters

run_id
string | null

Filter by run ID. Returns all checkpoints saved by the run.

Example:

"k4q95w5"

base_model
string | null

Filter by base model. Returns checkpoints across the caller's runs of this base model.

Example:

"Qwen/Qwen3-8B"

checkpoint_path
string | null

bt:// URI of a Loops checkpoint. Form: bt://loops:<run_id>/(weights|sampler_weights)/<checkpoint_name>.

Example:

"bt://loops:k4q95w5/sampler_weights/step-100"

Response

200 - application/json

Checkpoints matching the query filter.

checkpoints
LoopsCheckpointV1 · object[]
required

Matching checkpoints.